People offer prayer in a moment of silence in front of what is left of a disaster control center in an area devastated by the March 11, 2011 earthquake and tsunami in Minamisanriku, Miyagi Prefecture, Monday, March 11, 2013. Japan marked the second anniversary on Monday of the devastating disasters that left nearly 19,000 people dead or missing. (AP Photo/Shizuo Kambayashi)

Photo: Shizuo Kambayashi, ASSOCIATED PRESS

People offer prayer in a moment of silence in front of what is left...

People offer prayer in a moment of silence in front of what is left... Photo-4310136.58209 - SFGate

Image 2 of 63

People observe a moment of silence in front of what is left of a disaster control center in an area devastated by the March 11, 2011 earthquake and tsunami, in Minamisanriku, Miyagi prefecture, in Japan, Monday, March 11, 2013. Japan marked the second anniversary on Monday of the devastating earthquake and tsunami that left nearly 19,000 people dead or missing.(AP Photo/Shizuo Kambayashi)

Photo: Shizuo Kambayashi, ASSOCIATED PRESS

People observe a moment of silence in front of what is left of a...

People observe a moment of silence in front of what is left of a... Photo-4310129.58209 - SFGate

Image 3 of 63

A woman lights candles during an event for the victims of the March 11, 2011 earthquake and tsunami at a park in Tokyo, Monday, March 11, 2013. Japan marked the second anniversary on Monday of a devastating earthquake and tsunami that left nearly 19,000 people dead or missing. (AP Photo/Itsuo Inouye)

Photo: Itsuo Inouye, ASSOCIATED PRESS

A woman lights candles during an event for the victims of the March...

A woman lights candles during an event for the victims of the March... Photo-4310130.58209 - SFGate

Image 4 of 63

People pray in silence at a memorial service honoring victims of the March 11, 2011 earthquake and tsunami, a day before the second anniversary of the disaster, in Rikuzentakata, Iwate Prefecture, northern Japan, Sunday, March 10, 2013. (AP Photo/Shizuo Kambayashi)

Photo: Shizuo Kambayashi, ASSOCIATED PRESS

People pray in silence at a memorial service honoring victims of...

People pray in silence at a memorial service honoring victims of... Photo-4310131.58209 - SFGate

Image 5 of 63

A man points to the name of one of the victims of the earthquake and tsunami inscribed in a cenotaph in Okawa district in Ishinomaki, Miyagi Prefecture, northern Japan, Monday, March 11, 2013. Japan marked the second anniversary on Monday of a devastating earthquake and tsunami that left nearly 19,000 people dead or missing. (AP Photo/Shizuo Kambayashi)

Photo: Shizuo Kambayashi, ASSOCIATED PRESS

A man points to the name of one of the victims of the earthquake...

A man points to the name of one of the victims of the earthquake... Photo-4310133.58209 - SFGate

Image 6 of 63

The sun sets behind the wrecked Disaster Control Center where 42 people were killed by the March 11, 2011 tsunami, in Minamisanriku, Miyagi prefecture, Sunday, March 10, 2013. Japan marks the second anniversary of the disaster on Monday. (AP Photo/Shizuo Kambayashi)

Police officers search for the remains of those who went missing in the March 11, 2011 tsunami on the coastline in Ishinomaki, Miyagi Prefecture, northern Japan, Monday, March 11, 2013. The two-year anniversary Monday of Japan's devastating earthquake, tsunami and nuclear catastrophe is serving to spotlight the stakes of the country's struggles to clean up radiation, rebuild lost communities and determine new energy and economic strategies.(AP Photo/Shizuo Kambayashi)

Photo: Shizuo Kambayashi, ASSOCIATED PRESS

Police officers search for the remains of those who went missing in...

Police officers search for the remains of those who went missing in... Photo-4310139.58209 - SFGate

Image 8 of 63

A worker walks behind a white plastic plate cutout of the words of a local businessperson, declaring determination to reopen the business, in a tsunami-stricken area in Minamisanriku, Miyagi prefecture, northern Japan, Monday, March 11, 2013. Japan marked the second anniversary on Monday of a devastating earthquake and tsunami that left nearly 19,000 people dead or missing. The words mean; I will restart my business from zero like my ancestor. (AP Photo/Shizuo Kambayashi)

People make their way to a memorial service in remembrance of victims of the March 11, 2011 earthquake and tsunami, a day before the second anniversary of the disaster, in Rikuzentakata, Iwate Prefecture, northern Japan, Sunday, March 10, 2013. (AP Photo/Shizuo Kambayashi)

Photo: Shizuo Kambayashi, ASSOCIATED PRESS

People make their way to a memorial service in remembrance of...

People make their way to a memorial service in remembrance of... Photo-4310132.58209 - SFGate

Image 10 of 63

A boy prays for the March 11, 2011 earthquake and tsunami victims after offering a flower in Otsuchi, Iwate prefecture, northern Japan Sunday, March 10, 2013. Japan will mark the second anniversary of the disaster on Monday. (AP Photo/Kyodo News) JAPAN OUT, MANDATORY CREDIT, NO LICENSING IN CHINA, HONG KONG, JAPAN, SOUTH KOREA AND FRANCE

Photo: Uncredited, ASSOCIATED PRESS

A boy prays for the March 11, 2011 earthquake and tsunami victims...

A boy prays for the March 11, 2011 earthquake and tsunami victims... Photo-4310128.58209 - SFGate

Image 11 of 63

Tsutomu Murai, 31, right, with his wife Makiko, 28, and daughter Haruna, 8, watch the Pacific Ocean as they stand on the basement of their house washed out by tsunami wave in the area devastated by the March 11 tsunami and earthquake in the town of Soma, Fukushima Prefecture, Japan, Sunday, April 24, 2011. (AP Photo/Sergey Ponomarev)

FILE - In this April 15, 2011 file photo, Japanese police officers carry a body during a search and recovery operation for missing victims in the area devastated by the March 11 earthquake and tsunami in Namie near the tsunami-crippled Fukushima Dai-ichi nuclear power plant in Fukushima Prefecture, northeastern Japan. Japanese nuclear regulators trusted that the reactors at Fukushima Dai-ichi were safe from the worst waves an earthquake could muster based on a single-page memo from the plant operator nearly a decade ago. The towering waves unleashed by the magnitude-9.0 earthquake on March 11 destroyed backup generators for several reactors' cooling systems, and the nuclear cores in three reactors melted, sparking the worst atomic crisis the world since Chernobyl. Workers have yet to bring the plant under control more than two months later. (AP Photo/Hiro Komae, File)

Japanese woman searches for family albums and belongings among a pile of items recovered from the area devastated by the March 11 earthquake and tsunami and displayed at a school gymnasium in Natori, Miyagi Prefecture, Japan, Wednesday, April 13, 2011. Volunteers have been cleaning photos and personal possessions retrieved from damaged homes in the hope that they can be returned to survivors of the tsunami. (AP Photo/Sergey Ponomarev)

Photo: Sergey Ponomarev, ASSOCIATED PRESS

Japanese woman searches for family albums and belongings among a...

Japanese woman searches for family albums and belongings among a... Photo-4310124.58209 - SFGate

Image 14 of 63

Japanese search for family albums and belongings among a pile of items recovered from the area devastated by the March 11 earthquake and tsunami and displayed at a school gymnasium in Natori, Miyagi Prefecture, Japan, Wednesday, April 13, 2011. Volunteers have been cleaning photos and personal possessions retrieved from damaged homes in the hope that they can be returned to survivors of the tsunami. (AP Photo/Sergey Ponomarev)

Photo: Sergey Ponomarev, ASSOCIATED PRESS

Japanese search for family albums and belongings among a pile of...

Japanese search for family albums and belongings among a pile of... Photo-4310125.58209 - SFGate

Image 15 of 63

A woman with a baby on her back stands near coffins of victims of the March 11 earthquake and tsunami at a mass grave site in Yamamoto, Miyagi Prefecture, northeastern Japan, Tuesday, March 29, 2011.

Photo: Eugene Hoshiko, AP

A woman with a baby on her back stands near coffins of victims of...

A woman with a baby on her back stands near coffins of victims of... Photo-4310123.58209 - SFGate

Image 16 of 63

In this photo taken Sunday, March 27, 2011, a woman looks out to the destroyed neighborhoods from atop Weather Hill in Natori, Miyagi Prefecture, northeastern Japan. The hill was originally built to give fishermen a view of sea conditions but now offers an unforgettable look out over the vastness of the mass destruction left from tsunami caused by the March 11 earthquake. More than two weeks after the tsunami devastated communities along Japan's coast, the neighborhood around "Hiyori Yama" - Weather Hill - is beginning to show signs of life. (AP Photo/Wally Santana)

Photo: Wally Santana, ASSOCIATED PRESS

In this photo taken Sunday, March 27, 2011, a woman looks out to...

In this photo taken Sunday, March 27, 2011, a woman looks out to... Photo-4310122.58209 - SFGate

Image 17 of 63

A Japanese walks through a flooded street in the tsunami and earthquake ravaged city of Kesennuma, northeastern Japan Sunday, March 27, 2011. The magnitude-9 quake off Japan's northeast coast March 11 triggered a tsunami that barreled onshore and disabled the Fukushima Dai-ichi nuclear power plant. (AP Photo/David Guttenfelder)

Photo: David Guttenfelder, ASSOCIATED PRESS

A Japanese walks through a flooded street in the tsunami and...

A Japanese walks through a flooded street in the tsunami and... Photo-4310104.58209 - SFGate

Image 18 of 63

Survivors offer sake by a statue of Ebisu, the Japanese god of fishermen and one of the Seven Gods of Fortune, in front of a destroyed house in the devastated city of Kesennuma in Miyagi Prefecture Sunday, March 27, 2011 after the March 11 powerful earthquake and tsunami devastated northeastern Japan. (AP Photo/Vincent Yu)

Photo: Vincent Yu, ASSOCIATED PRESS

Survivors offer sake by a statue of Ebisu, the Japanese god of...

Survivors offer sake by a statue of Ebisu, the Japanese god of... Photo-4310105.58209 - SFGate

Image 19 of 63

FOR USE AS DESIRED, YEAR END PHOTOS - FILE -In this March 22, 2011 file photo, a boat sits atop a building in Otsuchi, Iwate Prefecture, Japan, following the March 11 earthquake and tsunami which devastated a vast area of northeastern Pacific coast of Japan. (AP Photo/Yomiuri Shimbun, File) JAPAN OUT, MANDATORY CREDIT

Photo: Hiroto Nomoto, ASSOCIATED PRESS

FOR USE AS DESIRED, YEAR END PHOTOS - FILE -In this March 22, 2011...

FOR USE AS DESIRED, YEAR END PHOTOS - FILE -In this March 22, 2011... Photo-4310121.58209 - SFGate

Image 20 of 63

Mizue Yamamura, 76, searches the area around her damaged apartment building for her husband in Onagawa, northeastern Japan, Saturday, March 19, 2011. Yamamura said that when the tsunami approached, she and her husband began to flee for the hill behind their home but he stopped to put on his shoes and she never saw him again. (AP Photo/David Guttenfelder)

Photo: David Guttenfelder, ASSOCIATED PRESS

Mizue Yamamura, 76, searches the area around her damaged apartment...

Mizue Yamamura, 76, searches the area around her damaged apartment... Photo-4310103.58209 - SFGate

Image 21 of 63

An elderly evacuee from Futaba, a town near the tsunami-crippled Fukushima Dai-ichi nuclear plant in Fukushima Prefecture, arrives at her new evacuation shelter at Saitama Super Arena in Saitama, northern Tokyo, Saturday, March 19, 2011. (AP Photo/Eugene Hoshiko)

Photo: Eugene Hoshiko, ASSOCIATED PRESS

An elderly evacuee from Futaba, a town near the tsunami-crippled...

An elderly evacuee from Futaba, a town near the tsunami-crippled... Photo-4310119.58209 - SFGate

Image 22 of 63

Tayo Kitamura, 40, kneels in the street to caress and talk to the wrapped body of her mother Kuniko Kitamura, 69, after Japanese firemen discovered the dead woman inside the ruins of her home in Onagawa, northeastern Japan, Saturday, March 19, 2011, following the last week's earthquake and tsunami. (AP Photo/Shuji Kajiyama)

Photo: Shuji Kajiyama, ASSOCIATED PRESS

Tayo Kitamura, 40, kneels in the street to caress and talk to the...

Tayo Kitamura, 40, kneels in the street to caress and talk to the... Photo-4310120.58209 - SFGate

Image 23 of 63

A woman holds her dog as they are scanned for radiation at a temporary scanning center for residents living close to the quake-damaged Fukushima Dai-ichi nuclear power plant Wednesday, March 16, 2011, in Koriyama, Fukushima Prefecture, Japan.

Photo: Gregory Bull, AP

A woman holds her dog as they are scanned for radiation at a...

A woman holds her dog as they are scanned for radiation at a... Photo-4310099.58209 - SFGate

Image 24 of 63

A woman holds out her hands as she is scanned for radiation exposure at a temporary scanning center for residents living close to the quake-damaged Fukushima Dai-ichi nuclear power plant Wednesday, March 16, 2011, in Koriyama, Fukushima Prefecture, Japan. (AP Photo/Gregory Bull)

Photo: Gregory Bull, ASSOCIATED PRESS

A woman holds out her hands as she is scanned for radiation...

A woman holds out her hands as she is scanned for radiation... Photo-4310102.58209 - SFGate

Image 25 of 63

Reiko Miura, 68, cries as she looks for her sister's son at a tsunami-hit area in Otsuchi, Iwate Prefecture, northern Japan, Wednesday, March 16, 2011, after Friday's earthquake and tsunami. (AP Photo/Itsuo Inouye)

Photo: Itsuo Inouye, ASSOCIATED PRESS

Reiko Miura, 68, cries as she looks for her sister's son at a...

Reiko Miura, 68, cries as she looks for her sister's son at a... Photo-4310098.58209 - SFGate

Image 26 of 63

Local people keep warm under covers in a school gymnasium being used as a center for people to stay at whose homes were damaged by the tsunami in Ofunato, Japan, Wednesday, March 16, 2011. Two search and rescue teams from the U.S. and a team from the U.K. with combined numbers of around 220 personnel searched the town for survivors Wednesday to help in the aftermath of the earthquake and tsunami. (AP Photo/Matt Dunham)

Photo: Matt Dunham, ASSOCIATED PRESS

Local people keep warm under covers in a school gymnasium being...

Local people keep warm under covers in a school gymnasium being... Photo-4310118.58209 - SFGate

Image 27 of 63

A man carries a heat blanket as he leaves a radiation emergency scanning centre in Koriyama, Fukushima Prefecture, Japan, Tuesday, March 15, 2011 four days after a giant quake and tsunami struck the country's northeastern coast. (AP Photo/Mark Baker)

Photo: Mark Baker, ASSOCIATED PRESS

A man carries a heat blanket as he leaves a radiation emergency...

A man carries a heat blanket as he leaves a radiation emergency... Photo-4310095.58209 - SFGate

Image 28 of 63

A Japanese wedding portrait lays in the rubble in the leveled city of Minamisanriku, in northeastern Japan, Tuesday March 15, 2011. (AP Photo/David Guttenfelder)

Photo: David Guttenfelder, ASSOCIATED PRESS

A Japanese wedding portrait lays in the rubble in the leveled city...

A Japanese wedding portrait lays in the rubble in the leveled city... Photo-4310094.58209 - SFGate

Image 29 of 63

A Japanese earthquake and tsunami survivor walks alone on a road past the destroyed village of Saito, in northeastern Japan, Monday, March 14, 2011. (AP Photo/David Guttenfelder)

Photo: David Guttenfelder, ASSOCIATED PRESS

A Japanese earthquake and tsunami survivor walks alone on a road...

A Japanese earthquake and tsunami survivor walks alone on a road... Photo-4310117.58209 - SFGate

Image 30 of 63

A photo hangs from the remains of a house in the seaside town of Toyoma, northern Japan, Monday, March 14, 2011, three days after a giant quake and tsunami struck the country's northeastern coast. (AP Photo/Mark Baker)

Photo: Mark Baker, ASSOCIATED PRESS

A photo hangs from the remains of a house in the seaside town of...

A photo hangs from the remains of a house in the seaside town of... Photo-4310089.58209 - SFGate

Image 31 of 63

Leaning electric poles are left in the area following massive tsunami triggered by March 11 earthquake in Daigasaki, near Sendai, Miyagi Prefecture, Japan, Monday, March 14, 2011. (AP Photo/Junji Kurokawa)

Photo: Junji Kurokawa, ASSOCIATED PRESS

Leaning electric poles are left in the area following massive...

Leaning electric poles are left in the area following massive... Photo-4310116.58209 - SFGate

Image 32 of 63

A resident wipes tears as she finds no remains of her home, Monday, March 14, 2011, in Soma city, Fukushima prefecture, Japan, three days after a massive earthquake and tsunami struck the country's north east coast. (AP Photo/Wally Santana)

Photo: Wally Santana, ASSOCIATED PRESS

A resident wipes tears as she finds no remains of her home, Monday,...

A resident wipes tears as she finds no remains of her home, Monday,... Photo-4310093.58209 - SFGate

Image 33 of 63

A wrecked sports car sits in flood waters, Monday, March 14, 2011, in Soma city, Fukushima prefecture, Japan, three days after a massive earthquake and tsunami struck the country's north east coast. (AP Photo/Wally Santana)

Residents queue to collect fresh water in Koriyama, Fukushima Prefecture, Japan, Sunday, March 13, 2011, two days after a giant quake and tsunami struck the country's northeastern coast. (AP Photo/Mark Baker)

A man holds empty bottles as he waits for water an emergency center on Sunday, March 13, 2011, in Koriyama, northeastern Japan, two days after a giant quake and tsunami struck the country's northeastern coast.(AP Photo/Gregory Bull)

Photo: Gregory Bull, ASSOCIATED PRESS

A man holds empty bottles as he waits for water an emergency center...

A man holds empty bottles as he waits for water an emergency center... Photo-4310085.58209 - SFGate

Image 40 of 63

An official wears protective clothing while waiting to scan people for radiation an emergency center on Sunday, March 13, 2011, in Koriyama, northeastern Japan, two days after a giant quake and tsunami struck the country's northeastern coast.(AP Photo/Gregory Bull)

Photo: Gregory Bull, ASSOCIATED PRESS

An official wears protective clothing while waiting to scan people...

An official wears protective clothing while waiting to scan people... Photo-4310084.58209 - SFGate

Image 41 of 63

An official scans a man for radiation at an emergency center Sunday, March 13, 2011, in Koriyama, northeastern Japan, two days after a giant quake and tsunami struck the country's northeastern coast.(AP Photo/Gregory Bull)

Photo: Gregory Bull, ASSOCIATED PRESS

An official scans a man for radiation at an emergency center...

An official scans a man for radiation at an emergency center... Photo-4310114.58209 - SFGate

Image 42 of 63

A man stands near a damaged house in Ofunato, Iwate Prefecture, northern Japan, Sunday, March 13, 2011, two days after a powerful earthquake-triggered tsunami hit Japan's east coast. (AP Photo/Shizuo Kambayashi)

Photo: Shizuo Kambayashi, ASSOCIATED PRESS

A man stands near a damaged house in Ofunato, Iwate Prefecture,...

A man stands near a damaged house in Ofunato, Iwate Prefecture,... Photo-4310112.58209 - SFGate

A young girl watches the news in a community center after being evacuated from areas surrounding the Fukushima nuclear facilities following Friday's massive 8.9 earthquake, in Iwaki City, Fukushima prefecture, Japan, Saturday, March 12, 2011. (AP Photo/Wally Santana)

Photo: Wally Santana, ASSOCIATED PRESS

A young girl watches the news in a community center after being...

A young girl watches the news in a community center after being... Photo-4310109.58209 - SFGate

Image 48 of 63

Buildings are covered with mud in Rikuzentakata, Iwate Prefecture, northern Japan, Saturday, March 12, 2011, after a powerful tsunami created by one of the strongest earthquakes ever recorded swept through Friday. (AP Photo/The Yomiuri Shimbum, Naoki Ueda) JAPAN OUT, CREDIT MANDATORY

People sleep on the floor of the Narita International Airport, near Tokyo, after flights were disrupted following Friday's magnitude 8.9 earthquake on Saturday, March 12, 2011. Japan launched a massive military rescue operation Saturday after a giant, quake-fed tsunami killed hundreds of people and turned the northeastern coast into a swampy wasteland, while authorities braced for a possible meltdown at a nuclear reactor. (AP Photo/Mark Baker)

Photo: Mark Baker, ASSOCIATED PRESS

People sleep on the floor of the Narita International Airport, near...

People sleep on the floor of the Narita International Airport, near... Photo-4310108.58209 - SFGate

Image 50 of 63

Smoke rises over an area in flood in Sendai, northern Japan, Saturday, March 12, 2011. Japan launched a massive military rescue operation Saturday after a giant, quake-fed tsunami killed hundreds of people and turned the northeastern coast into a swampy wasteland, while authorities braced for a possible meltdown at a nuclear reactor. (AP Photo/Itsuo Inouye)

Photo: Itsuo Inouye, ASSOCIATED PRESS

Smoke rises over an area in flood in Sendai, northern Japan,...

Smoke rises over an area in flood in Sendai, northern Japan,... Photo-4310075.58209 - SFGate

Image 51 of 63

A vessel gets stranded by floods in waters off Sendai, northern Japan, Saturday, March 12, 2011. Japan launched a massive military rescue operation Saturday after a giant, quake-fed tsunami killed hundreds of people and turned the northeastern coast into a swampy wasteland, while authorities braced for a possible meltdown at a nuclear reactor. (AP Photo/Itsuo Inouye)

Boats get washed away by floods in Sendai, northern Japan, Saturday, March 12, 2011. Japan launched a massive military rescue operation Saturday after a giant, quake-fed tsunami killed hundreds of people and turned the northeastern coast into a swampy wasteland, while authorities braced for a possible meltdown at a nuclear reactor. (AP Photo/Itsuo Inouye)

Smoke ascends over an industrial area in Sendai, northern Japan, Saturday, March 12, 2011. Japan launched a massive military rescue operation Saturday after a giant, quake-fed tsunami killed hundreds of people and turned the northeastern coast into a swampy wasteland, while authorities braced for a possible meltdown at a nuclear reactor. (AP Photo/Itsuo Inouye)

Photo: Itsuo Inouye, ASSOCIATED PRESS

Smoke ascends over an industrial area in Sendai, northern Japan,...

Smoke ascends over an industrial area in Sendai, northern Japan,... Photo-4310072.58209 - SFGate

Image 54 of 63

A ship gets stranded in Sendai, northern Japan, Saturday, March 12, 2011. Japan launched a massive military rescue operation Saturday after a giant, quake-fed tsunami killed hundreds of people and turned the northeastern coast into a swampy wasteland, while authorities braced for a possible meltdown at a nuclear reactor. (AP Photo/Itsuo Inouye)

Cargo containers are strewn about in Sendai, northern Japan, Saturday, March 12, 2011. Japan launched a massive military rescue operation Saturday after a giant, earthquake-fed tsunami killed hundreds of people and turned the northeastern coast into a swampy wasteland, while authorities braced for a possible meltdown at a nuclear reactor. (AP Photo/Itsuo Inouye)

Flames engulf buildings in an industrial complex in Sendai, northern Japan, Saturday, March 12, 2011. Japan launched a massive military rescue operation Saturday after a giant, quake-fed tsunami killed hundreds of people and turned the northeastern coast into a swampy wasteland, while authorities braced for a possible meltdown at a nuclear reactor. (AP Photo/Itsuo Inouye)

Fire fighters block a road for incoming vehicles for precaution of possible Tsunami following a massive Tsunami triggered by a huge earthquake on Friday, at Sendai airport in Sendai, northern Japan, Saturday, March 12, 2011.(AP Photo/Junji Kurokawa)

People flock around at an appliance store to buy batteries in Sendai, northern Japan, Saturday, March 12, 2011 after Japan's biggest recorded earthquake slammed into its eastern coast Friday. (AP Photo/Koji Sasahara)

Photo: Koji Sasahara, ASSOCIATED PRESS

People flock around at an appliance store to buy batteries in...

People flock around at an appliance store to buy batteries in... Photo-4310067.58209 - SFGate

Image 62 of 63

A crowd of people walk in a Tokyo street as no public transport became available after a strong earthquake hit eastern Japan Friday, March 11, 2011. (AP Photo/Itsuo Inouye)

Photo: Itsuo Inouye, ASSOCIATED PRESS

A crowd of people walk in a Tokyo street as no public transport...

A crowd of people walk in a Tokyo street as no public transport... Photo-4310106.58209 - SFGate